Duplex continuous automatic press.



C. S. OVERTONL DUPLEX CONTINUOUS AUTOMATIC PRESS.

APPLICATION FILED APR-17. 1915.

Patented May 9,1916.

4 SHEETS-SHEET I H EN v ahtozwu o C. S. OVERTON;

DUPLEX CONTINUOUS AUTOMATIC PRESS.

1,182,306 APPLICATION FILED APR. 17. H.315. Patented May 9, 4 SHEETS-SHEET 2 IIIIIIIIII/ll 1/ at)? @Wtow akkomqo C. S. OVERTON.

DUPLEX commuous AUTOMATIC PRESS.

Patented May 9, 1916.

4 $HEETSSHEET 3 ameM toz @wa @vmXm/v APPLICATION FILED APR. I?

H IIHiHI HIHHII -Z'HIHIH'I- Qwi/tweooey attozuugo THE COLUMBIA PLANOGRAPH 110., WASHINGTON. D4 0.

C. S. OVERTON.

DUPLEX commuous AUTOMATIC PRESS.

APPLICATION FILED APR-17. 1915. 1,182,306.

Patented May 9, 1916 4 SHEETS-SHEET 4.

Gwen W1 0 CHARLES S. OVERTON, OF BALTIMORE, MARYLAND.

DUPLEX conrrnuons AUTOMATIC rnnss.

Specification of Letters Patent.

Patented May a, rare.

Application filed April 17, 1915. Serial No. 22,046.

To all whom it may concern Be it known that 1, CHARLES SJOvnnToN,

a citizen of the United States residing at the city of Baltimore and State of Mary land, have invented certain new and useful Improvements in Duplex Continuous Automatic Presses; and I do declare the following to be a tulhclear, and exact description of the invention, such as will. enable others skilled in the art to which it appertainsto make and use the same.

My invention relates to improvements in presses and more particularly to those designed primarily for the removal of liquids from numerous kinds of material, the machine as shown in the present application being designed more particularly for the extraction of such moisture fromgarbage, although its application need not be limited to this use. v e

The object of the invention is to provide a machine of this class which although being of very simple and comparatively. inexpene sive construction, Wlll belnghly ethcient 1n operation and will possess a number of advantageous features, emphasis being laid upon the fact that the operation of the machine is continuous, thereby accomplishing a great saving in time and labor.

lVith this general ob'ect '11 view, the in vention residesfiin certain novel features of construction and in unique combinations of parts hereinafter if'ully described and claimed.

In. describing the invention, I shall refer to the accompanying drawings wherein like reference charactersdesignate correspond ing parts throughout the several views and.

wherein Figure 1 is a side elevation oi a press constructed in accordance with my invention, a portion of the casing being broken away to more clearly disclose the parts disposed within the same; Fig. 2 a top plan view with the entrance chute in horizontal sec tion; Fig. 3 is a central vertical longitudinal sectional view of the complete machine;

' Fig. 4 is a vertical transverse section as seen along, the plane'fdesignated by the line il of Fig. 1; Fig; 5 1s a similar view taken on the plane designated by the line 55 of Fig. 3; Fig. 6 is a detail vertical section as seen along the plane indicated by the line 66 of Fig. 5, a number of slats to be described being omitted for the sake of clearness; Fig. 7 is a horizontal section as viewed on the line 7 7 of Fig. 5, with certain slats omitted; Fig. 8 is anqinner side view of one of the two disks of, which the plunger is formed; Fig. 9 is a detail vertical transverse section taken on the plane designated by the line 9?) of Fig. 1; Fig. 10 is a detail longitudinal section showing niore particularly one of the bearings through which theplunger actuating rods operate; and Fig. 11-is a diagrammatic side elevation showing the manner in which a pair of presses constructed in accordance with the invention may be actuated by a single ram' or the like.

In these drawings which constitute a part of the application, the numeral 1 designates said slats converge from the centers thereof 1 towardtheir outer ends to providethe contracted ends l of the chamber 1, such converging ends of the slats being surrounded by and rigidlylsecured to additional rings 3-.

By the construction so far described, it will be evident that even though the slats 2 are of rather delicate! proportions "they will be effectively reinforced and held agalnst breaking and bending by the several rings 3 a'ndB thus providing not onlylight but I p eirtreinely strong and durable construction. The opposite ends of the chamber 1 may be supported by standards or the like l dis posed directly beneath the same or by any prcferr edmeans, said ends being shown in the present application as provided with additional supporting members in the form of longitudinally extending rods 5 secured thereto and projecting through apair of rigid uprightcheeks 6 which are spaced from said ends, the rods 5 being shown in the present embodiment of the invention as locked against movement in respect to the checks by the provision of nuts 7 disposed in contact with the opposite sides of said cheeks.

The opposite ends of the chamber 1 remain open and surround tubular supports 8 which are secured to the cheeks 6 by bolts or the like, the inner ends of these supports being reduced in diameter for the reception of the opposite ends of a plurality of slats 9 of which a cylindrical core 10 is constructed, this core extending throughoutthe length of the chamber 1 as clearly shown in Fig. 3 and having its several slats provided with inwardly diverging adjacent edges, while the slats 2 before described, are formed with adjacent edges which diverge outwardly, the edges of the twoseries of slats being related in this manner for the purpose of preventing material forced therebetween from being wedged. v

Slidably' mounted within the cylindrical body portion 1 of the chamber 1, is a plunger 11 having at its center an opening which receives the core 10 as clearly disclosed in Figs. 3 and 5, this plunger being secured to the inner ends of a plurality of plunger actuating rods 12, the latter being passed slidably through bearings 13 secured to the outer sides of the slats 2 at one end of the chamber 1. The rods in question likewise slide through openings in one of the upright cheeks 6 and a re connected in any preferred manner to a crosshead 14 which, in the present embodiment of the invention, is carried by the piston rod'15 of a ram 16, the latter being provided for the purpose of slowly reciprocating the plunger 11 within the cylindrical center of the chamber 1. his to be observed, that the rods 12 are secured to the plunger 11 near the periphery thereof, thus allowing said plunger as well as the rods to be of lighter construction than is possible when a single rod is employed secured to the center of the plunger.

Although the plunger 11 may be of practically any preferred formation, it is preferably embodied inthe form shown in detail in Figs. 5 to 8 inclusive; In these figures, the numerals 17 designate a pair of open-work disks which contact closely with each other and whose centers are provided with the alined hubs 18 which surround the core 10, the two disks being preferably secured by passing the ends of the actuating v rods 12 through the same and by threading nuts 19 on said rods in contact withthe outer sidesof the two disks. In addition to the hubs 18, the disks 17 include rims 20, the latter being shown as having bosses through which the rods 19 project, and as being formed integrally with the opposite ends of a pluralityof upright slats 21, certain of these slats being intercepted by the hubs 18 with which they are preferably formed integrally.- It is to be observed that the adjacent edges of the slats 21 of each plate diverge toward the slats of the other plate and that the slats of the two plates contact with each other, thereby producing a plurality of internal upright ports 22 in the plunger 11, all of these ports being provided with outlets 22" at their lower ends" which pass through the abutting portions of the rims 20, while the several ports above the hubs 18 deliver through similar outlets 22 into the core 10. r

The result of the construction just described is that an appreciable amount of moisture forced. from the material within the press will travel through the spaces between the several slats 21 into the ports 22, all of this fluid being new delivered respectively through the outlets 22 and 22 into the sectional casing 23 which surrounds the chamber 1, and into the core 10 at the center thereof. The fluid delivered into the casing 23 will be discharged therefrom through a plurality of outlets 2 1 in the lower side thereof, while any fluid which does not flow through the spaces between the slats 9 of the core 10, will flow into the tubular supports 8 from which it will be discharged through delivery pipes 25 which depend from said supports.

When the machine is applied to use, the ram 16 is actuated to force the plunger 11 to one end of the cylindrical portion 1 of the chamber 1, whereupon a valve 26 in the inlet chute 27 is opened, thus allowing a quantity of the material to be compressed to be delivered into said chamber 1. The valve 26 is now closed and the ram is actuated to shift the plunger in the opposite direction, thus compressing the material in the machine and forcing the liquids removed therefrom to be delivered through the'outlets '24- and 25. It is to be noted that as the plunger nears one of the contracted ends 1 v the material being pressed is wedged within this end in a compact solid mass, which mass will remain in the condition in which it is left by the plunger, until the next charge is forced toward this end of the machine.

Needless to say, however, this does not take place until the return stroke of the plunger 11 is utilized to compress a body of material in the opposite end of the press, it being thus evident that the machine is double acting and that time and labor are therefore saved.

As the additional charges are forced toward the compressed charges in the ends 1", such compressed charges will be forced from the ends of the chamber 1, through the space between the ends of the core 10 and the ad jac'ent ends of said chamber as clearly shown in Fig. 3. Were the material allowed to pass through these spaces freely, the result would be that the same would not be compressed to an extent great enough to remove all moisture therefrom. It therefore becomes expedient to provide simple and efficient means for-partially closing the open ends of the chamber 1 until the ressure therein rises above a predetermined degree, whereupon the closures will yield outwardly allowing the fully compressed and dried material to be discharged from the machine. It likewise becomes highly essential to provide this closure means with pressure regulating devices whereby the same may be allowed to open under different pressures, according to the character of the material upon which the machine is to be used. To these ends, the yielding abutments 30 are provided at the opposite ends of the chamber 1, said abutments being here shown in the form of rings triangular in cross section and slidably surrounding the o-pposite ends of the core 10 and the tubular supports 8 to which said ends are secured. The abutments 30 are normally forced toward the upper ends of the chamber 1 by coil springs 31, the tension of which may be varied by the provision of nuts 31, the latter being threaded on the inner ends of stop bolts 33 which extend longitudinally outward from the abutments 30 and pass through openings in the cheeks 6, the outer ends of said bolts being provided with adjusting nuts 34, it being evident from Figs. 1, 2 and 3 that the springs 31 are interposed between the aforesaid cheeks and the nuts 31 By the details of construction just described, it will be evident that tightening of the nuts 31 will compress the springs 31, thereby increasing their tension which is exerted to retain the abutments 30 in their innermost positions, the inward movement of these abutments being now limited by the nuts 34. On the other hand, it will be ob vious that loosening of the nuts 31 will allow the abutinents 30 to yield outwardly under less pressure within the machine, the tension of the springs therefore varying according to the character of material being compressed. Furthermore, the distance between the ends of the pressing chamber and the ring-shaped abutments 30 may be varied by adjustment of the nuts 34.

From the foregoing description, taken in connection with the accompanying drawings, it will be evident that although extremely simple construction has been provided for the attainment of the desired results, the complete machine will be extremely efficient in operation and will possess a num ber of highly advantageous features, due emphasis being laid upon the fact that time and labor are saved by the duplex operation added advantages are obtained by the provision of the outwardly yieldable abutments disposed attlie ends of the pressing chamber, 7

the construction of the plunger 11, aiswell as the general combination of parts disclosed in the drawings, however, being deemed rather unique and novel.

The machine constructed as above described and as illustrated in Figs. 1 to 10 of the drawings, is subject to a number of changes in proportion and in other respects fully within the scope of the present invention. Furthermore, as indicated in Fig. 11, a pair of presses designated in this figure by M may be connected to a single ram R whereby the two machines may be actuated simultaneously and may be made to produce twice the results obtained by the single machine.

I claim:

1. In combination, a cylindrical openwork pressing chamber having a gradually contracted delivery end, a cylindrical openwork core extending through said chamher, an open-work plunger operable in the chamber and surrounding the core therein, and an annular outwardly yieldable abutment surrounding the core at the contracted end of the chamber.

2. In combination, an open-work pressing chamber, an open-work core therein, and an annular plunger surrounding the core and having a plurality of ports leading from one of its sides into the core and into the chamber.

3. In combination, an open-work'pressing chamber, an open'work core therein, a hub slidably surrounding the core, a rim surrounding the hub and disposed adjacent the wall of the chamber, and slats spanning the space between the hub and the rim.

4:. In combination, an open-work pressing chamber, an open-work core therein, a hub member slidably surrounding the core and having in its upper side a plurality of ports opening into the same, a rim surrounding the hub and loosely engaging the wall of the chamber, said rim having ports in its lower side opening into said chamher, and an open-work structure spanning the space between the hub member and the rim.

5. In combination, an open-work pressing chamber, an open-work core therein, and an annular plunger surrounding the core and having a plurality of internal ports leading from one of its facesfinto the core and into the pressing chamber.

6. In combination, a pressing chamber and a plunger therein having internal ports lea-ding from one of its sides through one of its edges.

7. In combination, a pressing chamber, a

rim member slidable therein, a plurality of set my hand in presence of two subscribing spaced slats having their opposite ends se- Witnesses. cured to said rim member, and ports lead- CHARLES S. OVERTON. ing from the spaces between certain of said Witnesses: V slats through the rim member. HARRY THOMAS.

In testimony whereof I have hereunto LOUISE FRINK.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

, Washington, I). 0. 

